which organ develops and is fully functional in the first trimester?\nheart\nbrain\nliver\nlungs
which organ develops and is fully functional in the first trimester?\nheart\nbrain\nliver\nlungs
Answer
Brief Explanations:
During the first trimester of pregnancy, the heart is the first major organ to develop and start functioning. It begins to form around 3 - 4 weeks and starts beating around 6 weeks. The brain, liver, and lungs have more complex development processes and are not fully functional in the first trimester.
Answer:
A. heart